Simple hook-pull type telescopic fork

Abstract

The utility model discloses a simple hook pull style telescopic fork, including upper fork subassembly, lower fork subassembly, dial finger module and drive system, upper fork subassembly includes pair set up first upper fork and second upper fork, lower fork subassembly includes pair set up first lower fork and second lower fork, first upper fork passes through first guide rail and first lower fork sliding connection, and second lower fork passes through second guide rail and second lower fork sliding connection. The second upper fork is slidably connected with the second lower fork through the second guide rail, the first upper fork and the first lower fork are connected through the first driving part, the second upper fork and the second lower fork are connected through the second driving part, the first driving part and the second driving part are connected through the transmission shaft, and the transmission shaft is in transmission connection with the driving motor. The first driving part drives the first upper fork to reciprocate on the first lower fork through the driving motor, and the second driving part drives the second upper fork to reciprocate on the second lower fork through the driving motor. The utility model has low cost and small energy consumption, is suitable for carrying goods in an automatic stereoscopic warehouse, and can effectively improve the logistics efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic three -dimensional warehouse logistics equipment technical field especially relates to a kind of for light turnover box taking and placing hook pull telescopic fork device, it is applicable to improve shelf space utilization and reduce equipment operation energy consumption. BACKGROUND

[0002] At present, modern logistics infrastructure automated three-dimensional warehouse system is an important component of modern logistics system, is widely used in various trades and professions. At present, it has become one of the signs of enterprise production and management information. The stacker is the core equipment of the whole automated three-dimensional warehouse, realizes the transfer of goods from one place to another through manual operation, semi-automatic operation or full-automatic operation. The taking and placing goods unit used in the stacker generally adopts telescopic fork structure, and the telescopic fork has various structures, such as hook pull telescopic fork.

[0003] The hook pull telescopic fork on the market has exposed many problems in practical application at present.

[0004] 1. Complex structure and high cost: the driving mode depends on the gear on the lower fork and the rack on the middle fork, which drives the middle fork to reciprocate, and the upper fork and the lower fork are connected and fixed by the plate chain, and the plate chain is wound on the middle fork to realize the movement of the upper fork. This transmission mode makes the equipment structure complicated, with many parts and great assembly difficulty. Moreover, the upper and lower guide rails are used between the forks to further increase the complexity of the structure. Moreover, the gear and its mounting hole have high precision requirements, which undoubtedly increases the difficulty of machining and assembly, directly leading to a substantial increase in equipment cost.

[0005] 2. Unreasonable space utilization: the existing hook pull telescopic fork has high fork body height and large fork body cross section. For the turnover box with low height, this seriously wastes the vertical warehouse space and greatly reduces the storage density of the shelf, which cannot fully play the space advantage of the three-dimensional warehouse.

[0006] 3. Difficult maintenance and high cost: due to the complex structure of the equipment, the maintenance work is very tedious, which requires a lot of time and labor cost. Moreover, the complex structure means more fault points, and the maintenance cost is high.

[0007] 4. High energy consumption and high bearing requirement: each telescopic fork is independently configured with a reduction motor for driving, which results in high energy consumption. At the same time, the overall quality of the equipment is large, which puts higher requirements on the strength of the bearing surface and the transportation conditions, increasing the use cost and application limit.

[0008] Therefore, how to solve the above problems of the prior art has become the research subject of the utility model. The utility model discloses a content

[0009] Therefore, the utility model discloses a simple and easy hook and pull type telescopic fork.

[0010] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that is:

[0011] A simple and easy hook and pull type telescopic fork, comprising:

[0012] The upper fork assembly comprises a pair of first upper forks and second upper forks;

[0013] The lower fork assembly comprises a pair of first lower forks and second lower forks, the first upper fork is slidably connected with the first lower fork through a first guide rail, and the second upper fork is slidably connected with the second lower fork through a second guide rail.

[0014] The push finger module comprises a plurality of push fingers in the form of an elongated sheet structure, and each push finger is installed on the first upper fork and the second upper fork in pairs.

[0015] The driving system is connected with the first upper fork and the first lower fork through a first driving member, connected with the second upper fork and the second lower fork through a second driving member, connected with the first driving member and the second driving member through a transmission shaft, and the transmission shaft is in transmission connection with a driving motor, the first driving member drives the first upper fork to make reciprocating motion on the first lower fork through the driving motor, and the second driving member drives the second upper fork to make reciprocating motion on the second lower fork through the driving motor.

[0016] Further, the first driving member comprises a first upper fork synchronous belt and a first lower fork synchronous belt, the first upper fork synchronous belt is installed at the bottom of the first upper fork, the first lower fork synchronous belt is installed on the first lower fork, and the first upper fork synchronous belt is in engagement with the first lower fork synchronous belt.

[0017] The second driving member comprises a second upper fork synchronous belt and a second lower fork synchronous belt, the second upper fork synchronous belt is installed at the bottom of the second upper fork, the second lower fork synchronous belt is installed on the second lower fork, and the second upper fork synchronous belt is in engagement with the second lower fork synchronous belt.

[0018] Further, the first lower fork synchronous belt and the second lower fork synchronous belt are connected with the transmission shaft.

[0019] Further, the first upper fork synchronous belt, the second upper fork synchronous belt, the first lower fork synchronous belt and the second lower fork synchronous belt are all high-strength polyurethane synchronous belts, and the surfaces thereof are provided with wear-resistant lines.

[0020] Further, each push finger is in the form of a hook at the end away from the upper fork assembly.

[0021] Further, the first guide rail and the second guide rail are straight line ball guide rails, and cross sections of the first guide rail and the second guide rail are rectangular.

[0022] Further, the pushing finger is made of high-toughness stainless steel.

[0023] Further, ends of the first upper fork and the second upper fork are provided with buffer pads to prevent hard collision when the upper forks are retracted.

[0024] Further, the lower fork assembly is provided with a damping base at the bottom.

[0025] Further, the driving motor is a servo motor with an encoder, which can accurately control the retraction positions of the first upper fork and the second upper fork.

[0026] Compared with the prior art, the utility model has the beneficial effects that: the design of driving double forks by a single motor reduces the number of motors used, further reduces the cost, compared with the traditional configuration of a driving motor for each retractable fork, greatly reduces the energy consumption, meets the energy saving requirement of the modern logistics industry, and helps enterprises reduce operating costs. The driving motor accurately controls the retraction position of the upper fork, and cooperates with the auxiliary positioning of the pushing finger module, so that accurate taking and placing of goods can be realized, and the efficiency and quality of logistics operation are improved. Meanwhile, the structural design and functional configuration of the present application can adapt to goods of different sizes and shapes, and improve the application ability in diversified logistics scenes. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0028] FIG. 1 is a structural schematic diagram of the present application; Figure 1 FIG. 1 is a structural schematic diagram of the present application;

[0029] FIG. 2 is a sectional view schematic diagram of the present application; Figure 2 FIG. 3 is an enlarged view schematic diagram of A in FIG. 2.

[0030] Figure 3 FIG. 4 is an enlarged view schematic diagram of B in FIG. 2. Figure 2 FIG. 5 is an enlarged view schematic diagram of C in FIG. 2.

[0031] The reference signs and component part descriptions involved in the drawings are as follows:

[0032] ​1, the upper fork assembly; 11, the first upper fork; 12, the second upper fork; 2, the lower fork assembly; 21, the first lower fork; 22, the second lower fork; 3, the finger module; 31, the finger; 4, the drive system; 41, the first upper fork synchronous belt; 42, the second upper fork synchronous belt; 43, the transmission shaft; 44, the drive motor; 45, the first lower fork synchronous belt; 46, the second lower fork synchronous belt; 5, the first guide rail; 6, the second guide rail. DETAILED DESCRIPTION

[0033] The technical scheme of the utility model will be described clearly and completely through the specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0034] Referring to the drawings Figures 1-3 As shown in the drawings, a simple hook-pull type telescopic fork of the application comprises an upper fork assembly 1, a lower fork assembly 2, a finger module 3 and a drive system 4, wherein the upper fork assembly 1 comprises a pair of first upper forks 11 and second upper forks 12, the lower fork assembly 2 comprises a pair of first lower forks 21 and second lower forks 22, the first upper forks 11 are slidably connected with the first lower forks 21 through the first guide rails 5, the second upper forks 12 are slidably connected with the second lower forks 22 through the second guide rails 6, the finger module 3 comprises a plurality of fingers 31 in the form of elongated sheet structure, each finger 31 is installed in pairs on the first upper forks 11 and the second upper forks 12, the drive system 4 comprises a first drive member, a second drive member, a transmission shaft 43 and a drive motor 44, the first upper forks 11 and the first lower forks 21 are connected through the first drive member, the second upper forks 12 and the second lower forks 22 are connected through the second drive member, the first drive member and the second drive member are connected through the transmission shaft 43, the transmission shaft 43 is drivingly connected with the drive motor 44, the first drive member drives the first upper forks 11 to make reciprocating motion on the first lower forks 21 through the drive motor 44, and the second drive member drives the second upper forks 12 to make reciprocating motion on the second lower forks 22 through the drive motor 44.

[0035] The above structure is further described as follows:

[0036] The conventional hook-pull type telescopic fork is usually composed of an upper fork, a middle fork and a lower fork. In order to simplify the structure, reduce the volume and weight, the number of telescopic fork bodies is reduced by one middle fork in the application, so that the width of the telescopic fork is narrower, and the key components of the equipment are designed to be lightweight, so that the total mass is much lower than that of the existing equipment, and the equipment cost is reduced. Referring to the drawings Figures 1-3As shown, the upper fork assembly 1 of the present application comprises a pair of first upper fork 11 and second upper fork 12, and the lower fork assembly 2 comprises a pair of first lower fork 21 and second lower fork 22. The single guide rail is used to connect the upper fork and the lower fork, which has simple structure, light weight, and good performance in strength and stability, that is, the first upper fork 11 is connected with the first lower fork 21 through the first guide rail 5, and the second upper fork 12 is connected with the second lower fork 22 through the second guide rail 6. As an implementable way, the first guide rail 5 and the second guide rail 6 both adopt straight line ball guide rail, which has very low friction coefficient, can effectively reduce the resistance of the upper fork in the stretching process, make the movement more smooth, and improve the positioning accuracy. Moreover, compared with the traditional double guide rail structure, the design simplifies the structure and reduces the weight under the premise of ensuring the structural stability.

[0037] The finger module 3 is composed of a plurality of finger 31 in the form of an elongated sheet structure, and each finger 31 is installed in pairs on the first upper fork 11 and the second upper fork 12. The finger 31 is made of high-toughness stainless steel material, which ensures that the finger 31 is not easy to deform and break in frequent goods taking and placing operation, and has a long service life. During the goods taking and placing process, the finger 31 can be inserted into the gap between the goods to assist in positioning and grabbing the goods. For example, when the telescopic fork approaches the goods, the finger extends first, inserts into the gap between the goods, fine-tunes the position of the goods, ensures that the upper fork can accurately grab the goods, improves the accuracy of taking and placing goods, and is especially suitable for irregularly shaped or irregularly placed goods.

[0038] The first driving member includes a first upper fork synchronous belt 41 and a first lower fork synchronous belt 45. The first upper fork synchronous belt 41 is made of a specially designed high-strength polyurethane material to improve its tensile strength and wear resistance, and is fixed at the bottom of the first upper fork 11 through a high-precision installation process. The first lower fork synchronous belt 45 is installed on the first lower fork 11, and the tooth shape thereof is accurately matched with that of the first upper fork synchronous belt 41 to ensure that the two can be closely meshed. In the driving process, when the driving motor 44 is started, the rotating power of the motor is transmitted to the first lower fork synchronous belt 45 through the transmission shaft 43. Due to the meshing action of the first upper fork synchronous belt 41 and the first lower fork synchronous belt 45, the first upper fork synchronous belt 41 will produce linear motion with the rotation of the first lower fork synchronous belt 45, thereby driving the first upper fork 11 to make reciprocating linear motion on the first lower fork 21.

[0039] Similarly, the structure and working principle of the second driving member are similar to those of the first driving member. The second driving member includes a second upper cross synchronous belt 42 and a second lower cross synchronous belt 46. The second upper cross synchronous belt 42 is installed at the bottom of the second upper cross 12 and is made of high-quality material, which has good flexibility and wear resistance. The second lower cross synchronous belt 46 is installed on the second lower cross 22 and is engaged with the second upper cross synchronous belt 42. The driving motor 44 drives the second lower cross synchronous belt 46 to rotate through the transmission shaft 43, thereby driving the second upper cross 12 to move linearly on the second lower cross 22.

[0040] Meanwhile, the first lower cross synchronous belt 45 and the second lower cross synchronous belt 46 are connected to the transmission shaft 43 through high-precision synchronous pulleys. The synchronous pulleys are made of aluminum alloy material and are precisely machined to ensure the matching precision between the synchronous pulleys and the synchronous belts, thereby reducing the slipping phenomenon during transmission. The transmission shaft 43 is made of high-strength alloy steel and is subjected to heat treatment to improve its strength and toughness, thereby preventing deformation or fracture during power transmission.

[0041] The driving motor 44 is a servo motor with an encoder, which can accurately control the rotation angle and speed of the transmission shaft, thereby achieving precise control of the extension and retraction positions of the first upper cross 11 and the second upper cross 12. Through program setting, the extension and retraction of the fork require two actions to meet the customer's usage requirements. The two extension forks of the present application are driven by one driving motor through the transmission shaft 43. Compared with the traditional method of separately configuring a driving motor for each extension fork, the energy consumption is greatly reduced, which conforms to the development trend of energy saving and environmental protection and helps enterprises reduce operating costs. The synchronous belt is made of high-strength polyurethane material and has wear-resistant patterns on the surface, which not only reduces the weight of the equipment but also has good flexibility and wear resistance, easy installation, and low positioning accuracy requirement, thereby reducing the manufacturing cost of the fork body.

[0042] Preferably, in order to further optimize the performance of the equipment, when the prong 31 is extended with the upper cross assembly 1, the hook-shaped front end contacts the goods. During the continuous driving of the prong by the synchronous belt, the prong uses its bending structure and moving force to push the goods into or out of the designated position.

[0043] Preferably, in order to further optimize the performance of the equipment, a buffer pad is provided at the end of the first upper cross 11 and the second upper cross 12. The buffer pad is made of high-elasticity rubber material. When the extension fork is extended to the position, the buffer pad can effectively absorb the impact force, prevent the first upper cross 11 and the second upper cross 12 from colliding with other components, and protect the equipment and goods from damage. A shock-absorbing rubber pad is installed at the bottom of the lower cross assembly. The shock-absorbing rubber pad can reduce the vibration generated during the operation of the equipment, improve the stability of the equipment, reduce noise, and prolong the service life of the equipment.

[0044] Preferably, the bottom of the lower fork assembly 2 is mounted with a damping base in the embodiment, which effectively improves the stability of the equipment operation, reduces the risk of damage to the goods, and prolongs the overall service life of the equipment.

[0045] When the driving motor 44 is started in use, the power of the driving motor 44 is transmitted to the first lower fork synchronous belt 45 and the second lower fork synchronous belt 46 through the transmission shaft 43, the first lower fork synchronous belt 45 is engaged with the first upper fork synchronous belt 41 to drive the first upper fork 11 to reciprocate on the first lower fork 21 along the first guide rail 5, the second lower fork synchronous belt 46 is engaged with the second upper fork synchronous belt 42 to drive the second upper fork 12 to reciprocate on the second lower fork 22 along the second guide rail 6, the movement of the first upper fork 11 and the second upper fork 12 drives the movement of the prong 31, and the movement of the prong 31 is driven by the synchronous belt through the engagement of the connecting teeth, the stable rotation of the synchronous belt ensures that the prong 31 can accurately complete the hooking and pulling action, when the prong reaches the position of the goods, the hook-shaped front end of the prong is used to move the goods during the continuous movement, and the carrying operation is completed.

[0046] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A simple hook-and-pull telescopic fork, characterized in that, include: The upper fork assembly includes a first upper fork and a second upper fork arranged in a pair; The lower fork assembly includes a pair of first lower forks and second lower forks, wherein the first upper fork is slidably connected to the first lower fork via a first guide rail, and the second upper fork is slidably connected to the second lower fork via a second guide rail; The shifter module includes multiple shifters with elongated, plate-like structures, and each shifter is mounted in pairs on the first upper fork and the second upper fork; The drive system has the first upper fork and the first lower fork connected by a first drive component, the second upper fork and the second lower fork connected by a second drive component, the first drive component and the second drive component connected by a transmission shaft, the transmission shaft being connected to a drive motor, the first drive component driving the first upper fork to reciprocate on the first lower fork via the drive motor, and the second drive component driving the second upper fork to reciprocate on the second lower fork via the drive motor.

2. The simple hook-and-pull telescopic fork according to claim 1, characterized in that, The first drive unit includes a first upper fork timing belt and a first lower fork timing belt. The first upper fork timing belt is installed at the bottom of the first upper fork, and the first lower fork timing belt is installed on the first lower fork. The first upper fork timing belt and the first lower fork timing belt mesh. The second drive component includes a second upper fork timing belt and a second lower fork timing belt. The second upper fork timing belt is installed at the bottom of the second upper fork, and the second lower fork timing belt is installed on the second lower fork. The second upper fork timing belt and the second lower fork timing belt are engaged.

3. A simple hook-and-pull telescopic fork according to claim 2, characterized in that, Both the first lower fork timing belt and the second lower fork timing belt are connected to the drive shaft.

4. A simple hook-and-pull telescopic fork according to claim 2, characterized in that, The first upper fork synchronous belt, the second upper fork synchronous belt, the first lower fork synchronous belt, and the second lower fork synchronous belt are all high-strength polyurethane synchronous belts with wear-resistant textures on the surface.

5. A simple hook-and-pull telescopic fork according to claim 1, characterized in that, Each of the aforementioned finger has a hook-shaped end away from the upper fork assembly.

6. A simple hook-and-pull telescopic fork according to claim 1, characterized in that, The first and second guide rails are linear ball bearing guide rails, and their cross-sections are both rectangular.

7. A simple hook-and-pull telescopic fork according to claim 1, characterized in that, The shift finger is made of high-toughness stainless steel.

8. A simple hook-and-pull telescopic fork according to claim 1, characterized in that, The ends of the first and second upper forks are provided with buffer pads to prevent hard collisions when they are extended or retracted into their final positions.

9. A simple hook-and-pull telescopic fork according to claim 1, characterized in that, The bottom of the lower fork assembly is equipped with a shock-absorbing base.

10. A simple hook-and-pull telescopic fork according to claim 1, characterized in that, The drive motor is a servo motor with an encoder, which can precisely control the extension and retraction positions of the first upper fork and the second upper fork.

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